Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | ABB 35AE92A (Order Code: ER0002081060005) |
| Manufacturer | ABB |
| Product Type | Rechargeable Backup Battery / Memory Retention Module |
| Primary Function | RAM data retention and real-time clock (RTC) backup during power loss |
| Typical Voltage | 12 V DC (most common variant; 3.6V and 24V versions also reported) |
| Typical Capacity | 7.2 Ah (most common; 1Ah, 2.2Ah, 7Ah, 12Ah, and 20Ah variants documented) |
| Battery Chemistry | Sealed Lead-Acid (most common); Lithium Thionyl Chloride and NiMH variants exist |
| Charging Method | Float/trickle charging via controller internal circuitry |
| Terminal Type | Faston quick-connect tabs (tab terminals) |
| Operating Temperature | -20°C to +60°C (typical industrial range) |
| Cycle Life | 500 to 1000 cycles at 80% Depth of Discharge (DOD) |
| Recommended Replacement Interval | 3 to 5 years (preventive maintenance) |
| Compatible Systems | ABB Advant OCS, 800xA, AC 800M, S800 I/O, MasterPiece 200, AC31 |
| Product Status | Discontinued – Aftermarket supply only |
Main Features and Advantages
Critical Data Preservation: The primary function of the ABB 35AE92A is to protect the intellectual property and operational configuration of the control system. When the controller loses main power, the ABB 35AE92A immediately supplies a microampere-level current to the RAM chips and RTC, preserving complex process logic, production recipes, historical alarm logs, and accumulated runtime data . Without this backup, a system restart would initiate a “cold start,” wiping all volatile memory and leaving operators with the daunting task of reconstructing the system’s intelligence from scratch—a process that can take hours or days, depending on the application’s complexity.
Float-Charge Operational Model: The ABB 35AE92A is engineered for a “maintenance-free” float-charge lifecycle. During normal controller operation, the system’s internal power supply provides a regulated charging current that keeps the ABB 35AE92A in a fully charged, ready state . This float-charge design ensures that the battery is always at 100% capacity and never experiences deep discharge cycles that would significantly shorten its life. In this state, the ABB 35AE92A can function reliably for years, with a typical design life of 3 to 5 years in standard industrial environments .
Industrial-Grade Durability: The ABB 35AE92A is built to endure the harsh conditions of industrial environments, with an operating temperature range of -20°C to +60°C . This wide temperature tolerance allows the ABB 35AE92A to perform reliably in unheated electrical rooms, outdoor control cabinets exposed to the elements, and high-temperature areas near process equipment. The battery housing is constructed from durable ABS plastic with leak-proof sealing, and the Faston terminal design ensures secure, vibration-resistant connections that maintain electrical integrity even in high-vibration machinery applications .
Comprehensive System Integration: The ABB 35AE92A is not a generic battery; it is a system-specific component designed with the precise electrical characteristics, connector type, and physical dimensions required by ABB controllers. The system continuously monitors the ABB 35AE92A voltage and health status, and will generate diagnostic alarms if the battery capacity falls below acceptable thresholds . This ensures that operators receive early warning of impending battery failure, allowing for preventive replacement before critical data is jeopardized.
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